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The human body secretes more pain-blocking hormones late at

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The human body secretes more pain-blocking hormones late at  [#permalink]

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New post Updated on: 10 Mar 2018, 04:24
1
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A
B
C
D
E

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Question Stats:

87% (01:24) correct 13% (01:55) wrong based on 101 sessions

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The human body secretes more pain-blocking hormones late at night than during the day. Consequently, surgical patients operated on at night need less anesthesia. Since larger amounts of anesthesia pose greater risks for patients, the risks of surgery could be reduced if operations routinely took place at night.

Which of the following, if true, argues most strongly against the view that surgical risks could be reduced by scheduling operations at night?

(A) Energy costs in hospitals are greatly lower at night than they are during the day.

(B) More babies are born between midnight and seven o'clock in the morning than at any other time.

(C) Over the course of a year, people's biological rhythms shift slightly in response to changes in the amounts of daylight to which the people are exposed.

(D) Nurses and medical technicians are generally paid more per hour when they work during the night than when they work during the day.

(E) Manual dexterity and mental alertness are lower in the late night than they are during the day, even in people accustomed to working at night.

Originally posted by qhoc0010 on 18 Jan 2005, 13:48.
Last edited by broall on 10 Mar 2018, 04:24, edited 1 time in total.
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Re: The human body secretes more pain-blocking hormones late at  [#permalink]

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New post 18 Jan 2005, 16:25
Choose E.

E states that though pain may be low at night for the patients the people who will involved in performing the procedure may not be alert leading to other consequences.
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Re: The human body secretes more pain-blocking hormones late at  [#permalink]

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New post 23 Jul 2016, 13:30
E gives the reason why it wouldn't be safe to operate at night.
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Re: The human body secretes more pain-blocking hormones late at  [#permalink]

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New post 26 Aug 2018, 00:18
caught between d and e and marked d. please explain how to eliminate d
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Re: The human body secretes more pain-blocking hormones late at  [#permalink]

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New post 26 Aug 2018, 00:36
Let me try to help you out...
nivedita88 wrote:
caught between d and e and marked d. please explain how to eliminate d


Quote:
The human body secretes more pain-blocking hormones late at night than during the day. Consequently, surgical patients operated on at night need less anesthesia. Since larger amounts of anesthesia pose greater risks for patients, the risks of surgery could be reduced if operations routinely took place at night.

(D) Nurses and medical technicians are generally paid more per hour when they work during the night than when they work during the day.


First of all, the argument in hand does talk about money, neither any relation is indicated that'll help us to evaluate any answer choice.

Answer D, is irrelevant to our cause. Also, it does not indicate how money paid for surgeries done at night affect the risk of those surgeries.
Hence, answer choice has nothing that could Weaken the conclusion !
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Re: The human body secretes more pain-blocking hormones late at  [#permalink]

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New post 26 Aug 2018, 06:16
Premises
1) Human body produces more pain blocking hormone during the night than it does during the day.
2) As a result surgical patients require less anesthesia at night than at day. This is because more pain blocking hormone at night would compensate for any anesthetic requirement.
3) Larger amounts of anesthesia poses greater risks for patients.

Conclusion
Risks of surgery could be reduced if operations routinely took place at night.

Question stem
We need to find an answer choice that says that conducting more surgeries at night, though require less anesthesia may not necessarily reduce the risks associated with surgery.

The author here assumes that quantity of anesthesia is the only determining factor that influences the risks associated with surgery and hence concludes that the risks associated with surgeries would go down.

A - does nothing to prove that surgeries conducted at night are no less riskier than those conducted at day.
B - if anything this strengthens the conclusion by stating that as more babies are born during night hence other surgeries can also be carried out at night as the risk is less. This takes a small sample and tries to make a broader judgement but anyways we are looking for the opposite of this.
C - does nothing to prove that surgeries conducted at night are no less riskier than those conducted at day. This says that if people are made to work at night then over the course of an year their bodies will in all likelihood adjust slightly to the changes.
D - talks about the remuneration paid to nurses and medical technicians which in no way is related to the argument at hand. This in a way forces us to assume that since the night shifts offer better pay more staff would like to work at night and more staff means better patient care which again is flawed reasoning. If anything this option says that getting operated at night is a way better deal which again is the opposite of what we want.
I would like to reiterate that this option is clearly out of scope and whatever I stated is something far fetched.
E - this gives a reason to doubt that surgeries at night are not any safer than those at day. Even if less anesthesia is required at night, a less alert hospital staff could complicate a rather simple surgery.
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Re: The human body secretes more pain-blocking hormones late at &nbs [#permalink] 26 Aug 2018, 06:16
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